CN210950799U - Combination valve for multi-stage regulation of gas flow - Google Patents
Combination valve for multi-stage regulation of gas flow Download PDFInfo
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- CN210950799U CN210950799U CN201822273587.XU CN201822273587U CN210950799U CN 210950799 U CN210950799 U CN 210950799U CN 201822273587 U CN201822273587 U CN 201822273587U CN 210950799 U CN210950799 U CN 210950799U
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Abstract
The utility model provides a combined valve for multi-stage adjustment of gas flow, which comprises a filter, a one-way valve, a solenoid valve, a needle valve and a connecting pipeline; the filter is connected with the front end of the one-way valve through a main pipeline, the rear end of the one-way valve is connected with n branches, each branch is provided with an electromagnetic valve, the n branches are converged at the rear end of the electromagnetic valve to form the main pipeline, and the main pipeline at the rear end of the electromagnetic valve is provided with a needle valve. The utility model discloses a switching of control solenoid changes the sectional area of circulation pipeline, realizes the gas supply of different flows, and its response speed is fast, and flow control precision is high, long service life simultaneously.
Description
Technical Field
The utility model relates to a combination valve of multistage regulation gas flow belongs to pipeline regulation control technical field.
Background
The current flow regulation mode in the system comprises a manual valve and an electric valve which are all regulated by a single pipeline.
The manual mode mainly depends on valves such as a needle valve or a ball valve, the opening and closing degree of the valve needs to be manually controlled to achieve the purpose of adjusting the flow, the flow adjustment is related to the experience of operators, the adjustment precision is low, and meanwhile, the service life is short.
The electric regulation mode depends on electric switches such as electromagnetic valves, the regulation of flow is closely related to the reaction time, and a single electromagnetic valve only has two forms of opening and closing, and the regulation of flow only has two states of maximum and minimum, thus the aim of multi-stage regulation is not achieved. Meanwhile, the single electromagnetic valve is low in adjusting precision and short in service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the regulatory range of current gas flow adjusting device and being little, reaction time is long, adjusts the shortcoming that the precision is low and life is short, provides a multistage regulating gas flow's combination valve.
The utility model adopts the following technical scheme:
a combination valve for adjusting gas flow in multiple stages comprises a filter, a one-way valve, an electromagnetic valve, a needle valve and a connecting pipeline; the filter is connected with the front end of the one-way valve through a main pipeline, the rear end of the one-way valve is connected with n branches, each branch is provided with an electromagnetic valve, the n branches are converged at the rear end of the electromagnetic valve to form the main pipeline, and the main pipeline at the rear end of the electromagnetic valve is provided with a needle valve.
Further, n branch roads are 4.
Furthermore, the total pipeline section area of the utility model is S0, the pipeline section areas of the 4 branches are S1, S2, S3 and S4 respectively, and the satisfied condition isS02＞S12+S22+S32+S42。
Further, the sectional area complementation of pipeline is the same on 4 branches.
Further, the solenoid valve is the normal close type solenoid valve, the needle valve is manual type.
Advantageous effects
The utility model discloses a switching of control solenoid changes the sectional area of circulation pipeline, realizes the gas supply of different flows, and its response speed is fast, and flow control precision is high, long service life simultaneously.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific examples.
As shown in fig. 1, a multi-stage combination valve for adjusting gas flow comprises a filter, a one-way valve, a solenoid valve, a needle valve and a connecting pipeline; the filter is connected with the front end of the one-way valve through a main pipeline, the rear end of the one-way valve is connected with 4 branches, each branch is provided with an electromagnetic valve, the 4 branches are converged at the rear end of the electromagnetic valve to form the main pipeline, and the main pipeline at the rear end of the electromagnetic valve is provided with a needle valve.
In the utility model, the inner diameter of the main pipeline is D0, and the sectional area is S0; the inner diameters of the pipelines in which the 4 branches are located are respectively D1, D2, D3 and D4, and the cross-sectional areas are respectively S1, S2, S3 and S4; the inner diameter of a main pipeline at the rear end of the electromagnetic valve is D0, and the cross section area is S0. It satisfies the condition S02＞S12+S22+S32+S42。
The utility model discloses the filter can filter most impurity in the hydrogen, guarantees the purity of hydrogen, protects the spare part of low reaches pipeline. The check valve has a small opening pressure and only allows hydrogen to flow from one direction to the other direction, thereby preventing gas backflow. The electromagnetic valve is of a normally closed type, is in a closed state under the condition of not electrifying, cannot allow gas to flow, and is opened after electrifying. The needle valve is of a manual type, and can be opened and closed by rotating a handle, so that the flow is adjusted.
The working process of the utility model is as follows:
the gas flows in from the front end of the filter, passes through the one-way valve and flows to the front ends of the solenoid valves of the 4 branches. The opening and closing combination of 4 electromagnetic valves on the 4 branches is controlled, the flow cross section area of the whole pipeline is changed, and therefore the flow of the gas is changed. The gas flows through the electromagnetic valve, enters the main pipeline and flows out through the manual needle valve. During the whole process of gas circulation, the manual needle valve is in an opening state.
The utility model discloses a control the switching combination of solenoid valve on 4 branches, change the flow cross section area of whole pipeline to change gaseous flow, specifically as follows:
① opening the first solenoid valve A, closing the second solenoid valve B, the third solenoid valve C and the fourth solenoid valve D, the gas flowing in from the front end of the filter, passing through the one-way valve, flowing through the branch where the first solenoid valve A is located, and flowing out through the needle valve;
② opening the second solenoid valve B, closing the first solenoid valve A, the third solenoid valve C and the fourth solenoid valve D, the gas flows in from the front end of the filter, passes through the one-way valve, flows through the branch where the second solenoid valve B is located, and flows out through the needle valve;
③ opening the third electromagnetic valve C, closing the first electromagnetic valve A, the second electromagnetic valve B and the fourth electromagnetic valve D, the gas flowing in from the front end of the filter, passing through the one-way valve, flowing through the branch where the third electromagnetic valve C is located, and flowing out through the needle valve;
④ opening the fourth solenoid valve D, closing the first solenoid valve A, the second solenoid valve B and the third solenoid valve C, the gas flowing in from the front end of the filter, passing through the one-way valve, flowing through the branch where the fourth solenoid valve D is located, and flowing out through the needle valve;
⑤ opening the first solenoid valve A and the second solenoid valve B, closing the third solenoid valve C and the fourth solenoid valve D, the gas flows in from the front end of the filter, passes through the one-way valve, flows through the branch where the first solenoid valve A and the second solenoid valve B are located, and flows out through the needle valve;
⑥ opening the first solenoid valve A and the third solenoid valve C, closing the second solenoid valve B and the fourth solenoid valve D, the gas flowing in from the front end of the filter, passing through the one-way valve, flowing through the branch where the first solenoid valve A and the third solenoid valve C are located, and flowing out through the needle valve;
⑦ opening the first solenoid valve A and the fourth solenoid valve D, closing the second solenoid valve B and the third solenoid valve C, the gas flows in from the front end of the filter, passes through the one-way valve, flows through the branch where the first solenoid valve A and the fourth solenoid valve D are located, and flows out through the needle valve;
⑧ opening the second solenoid valve B and the third solenoid valve C, closing the first solenoid valve A and the fourth solenoid valve D, the gas flowing in from the front end of the filter, passing through the one-way valve, flowing through the branch where the second solenoid valve B and the third solenoid valve C are located, and flowing out through the needle valve;
⑨ opening the second solenoid valve B and the fourth solenoid valve D, closing the first solenoid valve A and the third solenoid valve C, the gas flows in from the front end of the filter, passes through the one-way valve, flows through the branch where the second solenoid valve B and the fourth solenoid valve D are located, and flows out through the needle valve;
⑩ opening the third solenoid valve C and the fourth solenoid valve D, closing the first solenoid valve A and the second solenoid valve B, the gas flowing in from the front end of the filter, passing through the one-way valve, passing through the branch where the third solenoid valve C and the fourth solenoid valve D are located, and flowing out through the needle valve;
The utility model discloses the control range of multistage regulation gas flow combination valve is big, and the branch road intercombination of 4 different pipe diameters has formed the regulation mode of flow from little to big 15 kinds of differences, compares the regulation of single solenoid valve, can realize the hydrogen supply under the different conditions. Four electromagnetic valves are connected in parallel for electric adjustment, and compared with a manual valve and a single electromagnetic valve, the four electromagnetic valves are high in adjustment precision, fast in reaction time and long in service life.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A multi-stage gas flow adjusting combination valve is characterized by comprising a filter, a one-way valve, an electromagnetic valve, a needle valve and a connecting pipeline; the filter is connected with the front end of the one-way valve through a main pipeline, the rear end of the one-way valve is connected with n branches, each branch is provided with an electromagnetic valve, the n branches are converged at the rear end of the electromagnetic valve to form the main pipeline, and the main pipeline at the rear end of the electromagnetic valve is provided with a needle valve.
2. The multi-stage modulating gas flow combination valve of claim 1, wherein the n branches are 4.
3. The multi-stage combination valve for regulating gas flow according to claim 2, wherein the total pipeline cross-sectional area is S0, the pipeline cross-sectional areas of the 4 branches are S1, S2, S3 and S4 respectively, and the condition S0 is satisfied2＞S12+S22+S32+S42。
4. The multi-stage combination valve for regulating the flow of gas of claim 2, wherein the cross-sectional areas of the lines in said 4 branches are different from each other.
5. The multi-stage combination valve for regulating the flow of gas of claim 1, wherein the solenoid valve is a normally closed type solenoid valve and the needle valve is a manual type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273587.XU CN210950799U (en) | 2018-12-29 | 2018-12-29 | Combination valve for multi-stage regulation of gas flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273587.XU CN210950799U (en) | 2018-12-29 | 2018-12-29 | Combination valve for multi-stage regulation of gas flow |
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| Publication Number | Publication Date |
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| CN210950799U true CN210950799U (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822273587.XU Active CN210950799U (en) | 2018-12-29 | 2018-12-29 | Combination valve for multi-stage regulation of gas flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013279A (en) * | 2020-08-25 | 2020-12-01 | 江苏慧呼吸医疗科技有限公司 | Double-electric-regulation flow control valve |
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2018
- 2018-12-29 CN CN201822273587.XU patent/CN210950799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013279A (en) * | 2020-08-25 | 2020-12-01 | 江苏慧呼吸医疗科技有限公司 | Double-electric-regulation flow control valve |
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